#ifndef _MPxConstraintCommand
#define _MPxConstraintCommand
//-
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//+
//
// CLASS:    MPxConstraintCommand
//
// ****************************************************************************

#if defined __cplusplus

// ****************************************************************************
// INCLUDED HEADER FILES


#include <maya/MStatus.h>
#include <maya/MTypes.h>
#include <maya/MObject.h>
#include <maya/MPxCommand.h>
#include <maya/MSyntax.h>
#include <maya/MDagPath.h>

// ****************************************************************************
// DECLARATIONS

class MArgDatabase;
class MPxConstraint;
class MObjectArray;
class MDGModifier;
class MTypeId;

// ****************************************************************************
// CLASS DECLARATION (MPxConstraintCommand)

//! \ingroup OpenMayaAnim MPx
//! \brief Proxy constraint command 
/*!
  MPxConstraintCommand is the base class for user defined constraint
  commands. This command gives all of the flags and options of the
  base constraint command in addition allows user defined flags or
  behaviours. When registering this command, use the
  MFnPlugin::registerConstraintCommand() method. A MPxConstraint is
  also required to be used with MPxConstraintCommand. The
  constraintTypeId() virtual must be implemented to return the correct
  constraint node.
*/
class OPENMAYAANIM_EXPORT MPxConstraintCommand : public MPxCommand
{
public:

	//! Defines the type of target object
	enum TargetType
	{
		kTransform,			//!< Transform target
		kGeometryShape,		//!< Geometry shape(or children of) targets
		kLast				//!< Last value, used for counting
	};

						MPxConstraintCommand();
	virtual 			~MPxConstraintCommand();

	virtual MStatus		doIt(const MArgList &argList);
	virtual MStatus		undoIt();
	virtual MStatus		redoIt();

	virtual MStatus	appendSyntax();

	MPxConstraint *constraintNode();

	// SCRIPT USE ONLY
	MSyntax	_syntax(MStatus *ReturnStatus = NULL) const
		{ return syntax( ReturnStatus ); }

protected:

	virtual MStatus              parseArgs(const MArgList &argList);

	//!	USE _syntax() IN SCRIPT
	MSyntax	syntax(MStatus *ReturnStatus = NULL) const;

	virtual MStatus				doEdit();
	virtual MStatus				doCreate();
	virtual MStatus				doQuery();

	virtual void					createdConstraint(MPxConstraint *constraint);

	virtual bool					supportsOffset() const;

	virtual bool					hasVectorFlags() const;

	virtual MTypeId					constraintTypeId() const;
	virtual MPxConstraintCommand::TargetType targetType() const;

	virtual const MObject&			aimVectorAttribute() const;
	virtual const MObject&			upVectorAttribute() const;
	virtual const MObject&			worldUpMatrixAttribute() const;
	virtual const MObject&			worldUpTypeAttribute() const;
	virtual const MObject&			worldUpVectorAttribute() const;
	virtual const MObject&			offsetAttribute() const;
	virtual const MObject&			constraintInstancedAttribute() const;
	virtual const MObject&			constraintOutputAttribute() const;
	virtual const MObject&			constraintRestAttribute() const;
	virtual const MObject&			constraintEnableRestAttribute() const;
	virtual const MObject&			constraintTargetInstancedAttribute() const;

	virtual const MObject&			constraintTargetAttribute() const;
	virtual const MObject&			constraintTargetWeightAttribute() const;
	virtual const MObject&			objectAttribute() const;

	virtual void					getObjectAttributesArray(MObjectArray& array);

	virtual void                    handleNewTargets( MObject& dagObject );
	virtual MStatus                 handleNewTargets( MDagPath& dagObject );

	virtual MStatus					connectTarget(void *opaqueTarget, int index);
	virtual MStatus					connectTarget(MDagPath &targetPath, int index);

	virtual MStatus					connectObjectAndConstraint( MDGModifier& modifier );

	MStatus							connectGeometryAttribute( void *opaqueTarget,	int index, MObject& constraintAttr );
	
	MStatus							connectTargetAttribute( void *opaqueTarget,	
																							int index, 
																							MObject& constraintAttr );

	MStatus							connectTargetAttribute( MDagPath &targetPath,	int index, 
																							MObject& tarAttr, 
																							MObject& constraintAttr, 
																							bool instanced = false );

	MStatus							connectObjectAttribute( const MObject& objectAttr,
										   const MObject& constraintAttr,
										   bool toConstraint = true, bool instanced = false);

	const MObject					transformObject();

private:


	void* instance;
	void setData(void *ptr);
	MPxConstraint *fUserNode;
};

inline MPxConstraint* MPxConstraintCommand::constraintNode()
{
	return fUserNode;
}

#endif /* __cplusplus */
#endif /* _MPxConstraintCommand */
